Fortville, IN has a population of 4,213 and is the 7,204th largest city in the United States. The population density is 1,454 per sq mi which is 710% higher than the Indiana average and 1505% higher than the national average. The median age in Fortville is 43 which is approximately 15% higher than the Indiana average of 37. In Fortville, 58% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 85% of Fortville residents were born in Indiana, 15% were born out of state, 1% were born outside of the United States and 0% were foreign born.